Chapter 1: Q64. (page 10)

Evaluate each expression
$- \sqrt{25}$

Short Answer

Expert verified

Expression $- \sqrt{25}$ results into $- 5$

Step by step solution

- Meaning of a

The symbol $\sqrt{}$ is used to denote square root of a number.

Thus $\sqrt{a}$ denotes square root of $' a'$

- Find a whole number whose square is 25

Since, $5^{2} = 25$

So, a whole number whose square is 25 is 5

- Simplify -25

Since, square of 5 is 25

So, square root of 25 is 5, $\sqrt{25} = 5$

Multiply both sides by $- 1$

$\begin{matrix} (- 1) \times \sqrt{25} = (- 1) \times 5 \\ - \sqrt{25} = - 5 \end{matrix}$

Thus, value of $- \sqrt{25}$ is $- 5$

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Evaluate each expression
$- \sqrt{25}$

Short Answer

Step by step solution

- Meaning of a

- Find a whole number whose square is 25

- Simplify -25

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Evaluate each expression-25

Short Answer

Step by step solution

- Meaning of a

- Find a whole number whose square is 25

- Simplify -25

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Applied Mathematics

Pure Maths

Statistics

Discrete Mathematics

Calculus

Study anywhere. Anytime. Across all devices.

Evaluate each expression
$- \sqrt{25}$